The validity and reliability of an iPhone app for measuring vertical jump performance
The validity and reliability of an iPhone app for measuring vertical jump performance
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DOI：
10.1080/02640414.2014.996184
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发表时间：
2015-09-14
影响因子：
3.4
通讯作者：
Lockey, Richard Anthony
中科院分区：
文献类型：
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作者：
Balsalobre-Fernandez, Carlos;Glaister, Mark;Lockey, Richard Anthony
这项调查的目的是分析iPhone应用程序(名为：My Jump)用于测量垂直跳跃性能的同时效度和可靠性。20名积极从事娱乐活动的健康男性(年龄：22.1+/-3.6岁)完成了5次最大反转跳跃，并使用力量平台(空中时间法)和专门设计的iPhone应用程序进行了评估。我的跳跃是利用iPhone 5s上的高速视频录制功能根据飞行时间计算跳跃高度的。使用组内相关系数、皮尔逊积矩相关系数(R)、克朗巴赫α(α)、变异系数和Bland-Altman曲线图对两种设备测量的100次跳跃的跳跃高度进行比较。力量平台和我的跳跃在反动作跳跃高度上几乎完全一致(组内相关系数=0.997，P
The purpose of this investigation was to analyse the concurrent validity and reliability of an iPhone app (called: My Jump) for measuring vertical jump performance. Twenty recreationally active healthy men (age: 22.1 +/- 3.6years) completed five maximal countermovement jumps, which were evaluated using a force platform (time in the air method) and a specially designed iPhone app. My jump was developed to calculate the jump height from flight time using the high-speed video recording facility on the iPhone 5s. Jump heights of the 100 jumps measured, for both devices, were compared using the intraclass correlation coefficient, Pearson product moment correlation coefficient (r), Cronbach's alpha (alpha), coefficient of variation and Bland-Altman plots. There was almost perfect agreement between the force platform and My Jump for the countermovement jump height (intraclass correlation coefficient=0.997, P